Species
Parexus recurvus Agassiz, 1844
Synonymy list
1844     Parexus recurvus — Agassiz , pp. 120, fig. 33:26-27
2013     Parexus recurvus Agassiz, 1844 — Burrow et al. , pp. 14, fig. 1-13
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Chordata | 
| Subphylum | Vertebrata | 
| Infraphylum | Gnathostomata | 
| Class | Acanthodii | 
| Order | Climatiiformes | 
| Family | Climatiidae | 
| Genus | Parexus | 
| Species | recurvus |